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Xue G, Xie X, Zhou Y, Yuan C, Huang M, Jiang L. Insight to the residue in P2 position prevents the peptide inhibitor from being hydrolyzed by serine proteases. Biosci Biotechnol Biochem 2020; 84:1153-1159. [PMID: 32019421 DOI: 10.1080/09168451.2020.1723405] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Peptidic inhibitors of proteases are attracting increasing interest not only as drug candidates but also for studying the function and regulation mechanisms of these enzymes. Previously, we screened out a cyclic peptide inhibitor of human uPA [Formula: see text] and found that Ala substitution of P2 residue turns upain-1 to a substrate. To further investigate the effect of P2 residue on the peptide behavior transformation, we constructed upain-1-W3F, which has Phe replacement in the P2 position. We determined KD and Ki of upain-1-W3F and found that upain-1-W3F might still exist as an inhibitor. Furthermore, the high-resolution crystal structure of upain-1-W3F·uPA reveals that upain-1-W3F indeed stays as an intact inhibitor bind to uPA. We thus propose that the P2 residue plays a nonnegligible role in the conversion of upain-1 to a substrate. These results also proposed a strategy to optimize the pharmacological properties of peptide-based drug candidates by hydrophobicity and steric hindrance.Abbreviations : uPA: urokinase-type plasminogen activator; SPD: serine protease domain; S1 pocket: specific substrate-binding pocket.
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Affiliation(s)
- Guangpu Xue
- College of Chemistry, Fuzhou University, Fuzhou, China.,National & Local Joint Biomedical Engineering Research Center on Photodynamic Technologies, College of Chemistry, Fuzhou, China
| | - Xie Xie
- College of Chemistry, Fuzhou University, Fuzhou, China.,National & Local Joint Biomedical Engineering Research Center on Photodynamic Technologies, College of Chemistry, Fuzhou, China
| | - Yang Zhou
- College of Chemistry, Fuzhou University, Fuzhou, China.,National & Local Joint Biomedical Engineering Research Center on Photodynamic Technologies, College of Chemistry, Fuzhou, China
| | - Cai Yuan
- National & Local Joint Biomedical Engineering Research Center on Photodynamic Technologies, College of Chemistry, Fuzhou, China.,College of Biological Science and Engineering, Fuzhou University, Fuzhou, China
| | - Mingdong Huang
- College of Chemistry, Fuzhou University, Fuzhou, China.,National & Local Joint Biomedical Engineering Research Center on Photodynamic Technologies, College of Chemistry, Fuzhou, China.,College of Biological Science and Engineering, Fuzhou University, Fuzhou, China
| | - Longguang Jiang
- College of Chemistry, Fuzhou University, Fuzhou, China.,National & Local Joint Biomedical Engineering Research Center on Photodynamic Technologies, College of Chemistry, Fuzhou, China
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Zhou Y, Chen D, Xue G, Yu S, Yuan C, Huang M, Jiang L. Improved therapeutic efficacy of quercetin-loaded polymeric nanoparticles on triple-negative breast cancer by inhibiting uPA. RSC Adv 2020; 10:34517-34526. [PMID: 35514369 PMCID: PMC9056791 DOI: 10.1039/d0ra04231e] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Accepted: 09/02/2020] [Indexed: 12/14/2022] Open
Abstract
Triple negative breast cancer (TNBC) is one kind of breast cancer that demonstrates highly aggressive tumor biology. The high heterogeneity of TNBC makes its individual clinical treatment extremely blind and limited, which also introduces more challenges into the diagnosis and treatment of diseases. Urokinase-type plasminogen activator (uPA) is a high level marker for breast cancer, which mediates tumor growth and metastasis. Quercetin is a plant-derived flavonoid in many plants, which inhibits uPA and has low bioavailability and mediocre pharmaceutical efficacy. Thus, we herein developed polymeric nanoparticulate systems from PLGA-TPGS (Qu-NPs) for quercetin oral delivery and evaluated the anticancer effect of this formulation on TNBC in vitro and in vivo. Qu-NPs have a uniform spherical morphology with a mean diameter of 198.4 ± 7.8 nm and good drug loading capacity (8.1 ± 0.4%). Moreover, Qu-NPs exhibited significantly improved inhibition on the growth and metastasis in TNBC cells. Following oral gavage, a remarkable antitumor effect of Qu-NPs on 4T1-bearing mice was observed with a tumor inhibition ratio of 67.88% and fewer lung metastatic colonies. Furthermore, the inhibitory effect of quercetin on the migration of uPA knockdown MDA-MB231 cells was greatly attenuated. Together, Qu-NPs improved the significant antitumor and antimetastatic effects by inhibiting uPA, which provides a new strategy for the treatment of TNBC. Triple negative breast cancer (TNBC) is one kind of breast cancer that demonstrates highly aggressive tumor biology.![]()
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Affiliation(s)
- Yang Zhou
- College of Chemistry
- National & Local Joint Biomedical Engineering Research Center on Photodynamic Technologies
- Fuzhou University
- Fuzhou
- China
| | - Dan Chen
- College of Chemistry
- National & Local Joint Biomedical Engineering Research Center on Photodynamic Technologies
- Fuzhou University
- Fuzhou
- China
| | - Guangpu Xue
- College of Chemistry
- National & Local Joint Biomedical Engineering Research Center on Photodynamic Technologies
- Fuzhou University
- Fuzhou
- China
| | - Shujuan Yu
- College of Chemistry
- National & Local Joint Biomedical Engineering Research Center on Photodynamic Technologies
- Fuzhou University
- Fuzhou
- China
| | - Cai Yuan
- College of Biological Science and Engineering
- Fuzhou University
- Fuzhou
- China
| | - Mingdong Huang
- College of Chemistry
- National & Local Joint Biomedical Engineering Research Center on Photodynamic Technologies
- Fuzhou University
- Fuzhou
- China
| | - Longguang Jiang
- College of Chemistry
- National & Local Joint Biomedical Engineering Research Center on Photodynamic Technologies
- Fuzhou University
- Fuzhou
- China
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3
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Wang D, Yang Y, Jiang L, Wang Y, Li J, Andreasen PA, Chen Z, Huang M, Xu P. Suppression of Tumor Growth and Metastases by Targeted Intervention in Urokinase Activity with Cyclic Peptides. J Med Chem 2019; 62:2172-2183. [PMID: 30707839 DOI: 10.1021/acs.jmedchem.8b01908] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Urokinase-type plasminogen activator (uPA) is a diagnostic marker for breast and prostate cancers recommended by American Society for Clinical Oncology and German Breast Cancer Society. Inhibition of uPA was proposed as an efficient strategy for cancer treatments. In this study, we report peptide-based uPA inhibitors with high potency and specificity comparable to monoclonal antibodies. We revealed the binding and inhibitory mechanisms by combining crystallography, molecular dynamic simulation, and other biophysical and biochemical approaches. Besides, we showed that our peptides efficiently inhibited the invasion of cancer cells via intervening with the processes of the degradation of extracellular matrices. Furthermore, our peptides significantly suppressed the tumor growth and the cancer metastases in tumor-bearing mice. This study demonstrates that these uPA peptides are highly potent anticancer agents and reveals the mechanistic insights of these uPA inhibitors, which can be useful for developing other serine protease inhibitors.
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Affiliation(s)
- Dong Wang
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter , Chinese Academy of Sciences , 155 West Yangqiao Road , Fuzhou , Fujian 350002 , China.,University of Chinese Academy of Sciences , No.19 (A) Yuquan Road , Shijingshan District, Beijing 100049 , China
| | - Yongshuai Yang
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter , Chinese Academy of Sciences , 155 West Yangqiao Road , Fuzhou , Fujian 350002 , China.,University of Chinese Academy of Sciences , No.19 (A) Yuquan Road , Shijingshan District, Beijing 100049 , China.,College of Life Science , Fujian Agriculture and Forestry University , Fuzhou , Fujian 350002 , China
| | - Longguang Jiang
- College of Chemistry , Fuzhou University , Fuzhou , Fujian 350116 , China
| | - Yu Wang
- College of Life Science , Fujian Agriculture and Forestry University , Fuzhou , Fujian 350002 , China
| | - Jinyu Li
- College of Chemistry , Fuzhou University , Fuzhou , Fujian 350116 , China
| | - Peter A Andreasen
- Department of Molecular Biology and Genetics , Aarhus University , Aarhus C 8000 , Denmark
| | - Zhuo Chen
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter , Chinese Academy of Sciences , 155 West Yangqiao Road , Fuzhou , Fujian 350002 , China
| | - Mingdong Huang
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter , Chinese Academy of Sciences , 155 West Yangqiao Road , Fuzhou , Fujian 350002 , China.,College of Chemistry , Fuzhou University , Fuzhou , Fujian 350116 , China
| | - Peng Xu
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter , Chinese Academy of Sciences , 155 West Yangqiao Road , Fuzhou , Fujian 350002 , China
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